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Verified answer
√-x+4 < √x+2-x+4 < x+2
-2x < -2
x > 1
syarat
-x + 4 >= 0
x <= 4
x + 2 >=0
x >= -2
Gabungan penyelesaian
x > 1
x <= 4
x >= -2
HP{1 < x <= 4}
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Dari : th